Binary Effects Superhydrophobicity with Self-Cleaning and ... · superhydrophobicity of the modified MXene coating, 808 nm NIR laser (power intensity = 1.0 W/cm2) was used to irradiate
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S1
Supporting Information
Two-Dimensional MXene-Reinforced Robust Surface
Superhydrophobicity with Self-Cleaning and Photothermal-Actuating
Fig. S9 Optical photographs, SEM images, and CA measurements of (a) PDMS@m/d-
F1, and (b) PDMS@m/d-F3 coated on filter paper.
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Fig. S10 Optical photographs, SEM images, and CA measurements of (a) cotton coated
with PDMS@m/d-F2, and (b) glass slide coated with PDMS@m/d-F2.
Fig. S11 Optical photographs showing the procedure of dipping an untreated filter
paper into methylene blue staining water.
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Fig. S12 (a) Sandpaper abrasion test of the coater filter paper, which glued to a glass
surface. Insert: water drop on the coated filter paper surface before and after 10 abrasion
cycles. (b) Photographs of the surface before (top) and after (bottom) the cross-cut tape
test. A water droplet was placed on the pressed surface.
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Fig. S13 Water CA of coated filter paper as a function of temperature. Images of 3 μL
water droplet on the coating surface at 20, 50, and 80 oC were inserted.
Fig. S14 Water CA of coated filter paper as a function of the number of NIR
illumination cycles. Images of 3 μL water droplet on the coating surface after 1 and 10
illumination cycles.
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Fig. S15 Optical photographs showing the procedure of self-cleaning test on uncoated
filter paper.
Fig. S16 Photothermal heating curves of various samples under 808 nm NIR light
irradiation.
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Fig. S17 Photothermal heating curves of PDMS@m/d-F2 coating under 980 nm light
irradiation.
Fig. S18 The force analyses and thermography images of the coated filter paper for
linear motions and rotational motions.
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Supplementary Movie S1
This Movie shows the outstanding self-cleaning ability and behavior of the
PDMS@m/d-F2 coating.
Supplementary Movie S2
This Movie shows the remarkable liquid repellency of the PDMS@m/d-F2 coating.
Supplementary Movie S3
This Movie shows the filter paper coated with PDMS@m/d-F2 could obtain directional
linear motions (e.g., forward propulsion or left/right turning propulsion) under the NIR
laser irradiation.
Supplementary Movie S4
This Movie shows the coated filter paper could swerve in two opposite directions (i.e.,
clockwise, and anticlockwise rotational rotations) through a rational combination of the
asymmetric structure and varied irradiation position.
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Supplementary Information Reference:
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